1. Vardenafil treatment for patients with pulmonary arterial hypertension: a multicentre, open-label study. Issue 18 (22nd June 2009) Authors: Jing, Z-C; Jiang, X; Wu, B-X; Xu, X-Q; Wu, Y; Ma, C-R; Wang, Y; Yang, Y-J; Pu, J-L; Gao, W Journal: Heart Issue: Volume 95:Issue 18(2009) Page Start: 1531 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗